Home / 7,132.89-9,839.43-4,148.39

Finding the Fourth Proportional to 7,132.89, 9,839.43 and 4,148.39

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Solution

The fourth proportional to 7,132.89, 9,839.43 and 4,148.39 is: 5,722.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.89 : 9,839.43 = 4,148.39 : x
  2. Step 2: Convert to fraction form
    7,132.89/9,839.43 = 4,148.39/x
  3. Step 3: Cross multiply
    7,132.89x = 9,839.43 × 4,148.39
  4. Step 4: Simplify right side
    7,132.89x = 40,817,793.02
  5. Step 5: Solve for x
    x = 40,817,793.02/7,132.89
  6. Step 6: Final answer
    x = 5,722.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.